Change language does not work

Hello,

I usually work in my Spanish in Spanish system is installed.
I checked if the passage in French (with conservation keyboard español) no problem I also use the French.
operations (system settings-supported language):
French-selection
-Change the priority (French topped the list followed by Spanish and English)
-Reboot
OK-start and a presentation screen (which unfortunately I have not kept photocopy) asking me if I want to change / keep folder names (letters displayed correct) no change is effected files tell me your .

I therefore confirm the renaming of files.
and here I am before the first error:
Ubuntu 13.04 a meeting an internal error
/ Usr / lib / dconf / dconf-service

I click continue to send the error report (not the first)
and another bug:
The problem can not be reported on the program / usr / lib / dconf / dconf-service has changed since the crash

I look at my home and I realize that instead of changing the name of the directory language origin to the new language ubuntu merely create new folders.
eg Desktop => Desktop Office and not renamed Bureau Descargas => Downloads and not renamed in Downloads
Imagenes => Images etc ...

WHAT is this circus? ¡!
Now if I pass in English I'll end up with directories in English a mess in my home?
CONCLUSION: IT DOES NOT WORK (and it is not today, but this is the first time I mention this gag)

My comment developers in conclusion:
Focus more on the problems of substance rather than form would be a good approach.
is neither a virtuoso console nor very motivated to write in English (I use translate.google to translate from French to English)
For me, this problem is a serious problem.

Feedback please

Thank you for supporting me so far

Pierre-Henri